Vibration under load

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kxcrazy

Junior Member
Joined
Nov 5, 2011
Posts
5
Reaction score
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Ram Year
1996
Engine
5.9
Hi All,

Have a weird vibration issue and looking to see if anyone can help.

Background: Truck is a 1996 2500 4x4 and I have already replaced the following as they have needed it: Rear driveshaft ujoints, front control arms, shocks and coil springs, all bushings, hubs.

Last winter started to have a clicking noise when in 4 wheel drive as well as a vibration at highway speeds. Pulled the front driveshaft and it needs replacing as the slip joint has lateral play and makes noise when you push on it sideways.

Ran the truck w/o the front shaft and a lot of the noise etc was gone but still have a vibration that only occurs when under load. Coasting the vibration is gone.

Rotated tires made no difference. I checked the rear ujoints and they are still good. I did notice that the transmission mount has some separation of the rubber to metal base as well as a squeak when you try and pry up on the transmission.

Could this cause this weird vibration?

Going to be ordering a new driveshaft and will order a new mount as well if it will help.

Thanks for any assistance!
 

MagSport

Senior Member
Joined
Mar 10, 2014
Posts
1,258
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514
Location
South Carolina
Ram Year
1999
Engine
5.9
The mount will definitely help if not solve your issue. Other things to look at are motor mounts and axle u-joints at the hubs.
 
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kxcrazy

Junior Member
Joined
Nov 5, 2011
Posts
5
Reaction score
0
Ram Year
1996
Engine
5.9
The mount will definitely help if not solve your issue. Other things to look at are motor mounts and axle u-joints at the hubs.

Axle ujoints appear to have no play but the drivers side motor mount has play and squeaks so that will be next.
 
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